@rem: (@px / 75)*1rem;
@px: 0;
.null-class{
  height: 15/75rem;
  background-color: #EAEAEA;
}
.study-center {
  padding-bottom: 55px;

  .picture-box {
    display: inline-block;
  }

  .row-flex,
  .colum-flex {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
  }

  .row-flex {
    flex-direction: row;
  }

  .colum-flex {
    flex-direction: column;
  }

  .mint-tabbar {
    background-color: #ffffff;
  }

  img {
    width: 100%;
    height: 100%;
  }

  .study-body {
    background-color: #EAEAEA;
    // padding-bottom: 55px;

    .banner {
      padding: 15/75rem 18/75rem;
      background-color: #ffffff;
      height: @rem;
      @px: 422
    }

    .class-box {
      background-color: #ffffff;
      .see-more{
        padding: 20/75rem 0 ;
        text-align: center;
        color: #999999;
      }
    }

    .notice-box {
      // background-color: #ffffff;
      //   margin-bottom: 5px;

      .notice {
        padding: 10px 0 5px 10px;
        font-size: 14px;
        // border-bottom: 1px solid #EAEAEA;

        .icon-rectangle {
          display: inline-block;
          height: 14px;
          width: 5px;
          margin-right: 4px;
          background-color: #4787E4;
        }
      }

      .voice-icon {
        width: 11px;
        height: 13px;
      }

      .notice-msg {
        display: flex;
        padding: 9px 22px;
        font-size: 12px;
        color: #000000;

        .notice-type {
          margin-left: 10px;
        }

        .notice-time {
          flex: 1 0 auto;
          text-align: right;
        }

      }
    }

    .menu-box {
      margin-bottom: 5px;
      background-color: #ffffff;

      // height: @rem;
      // @px:387;   
      .item-box {
        padding: 0 @rem 0;
        @px: 31;

        .item {
          width: 33.33%;
          margin-bottom: (24 / 75) * 1rem;
          line-height: 20px;
        }
      }

      .menu-size {
        width: @rem;
        height: @rem;
        padding: 7px;
        @px: 90;
        border-radius: 5px;
        box-sizing: border-box;
      }
    }

    .train-box {
      background-color: #ffffff;
      margin-bottom: 18/75rem;
      padding: 20/75rem @rem 0;
      @px: 41;
      .train-video-box {
        margin-top: 10px;
        @px: 41;

        .train-video-head {
          padding-bottom: 20/75rem;
          border-bottom: 0.5px solid #999999;
          .vide-head-img {
            position: relative;
            width: 86/75rem;
            height: 86/75rem;
            margin-right: 30/75rem;
            border-radius: 50%;
            overflow: hidden;
            background-color: #4787E4;
            .plan-icon{
              position: absolute;
              top: 50%;
              left: 50%;
              margin-top: -20/75rem;
              margin-left: -18/75rem;
              font-size: 36/75rem;
              color: #ffffff;
            }
          }

          .vide-head-text1 {
            font-size: 24/75rem;
            color: #4787E4;
          }

          .vide-head-text2 {
            margin: 14/75rem 0 10/75rem 0;
            font-size: 21/75rem;
            color: #999999;
          }

          .vide-head-text3 {
            font-size: 21/75rem;
            color: #999999;
          }
        }
        .train-video-footer{
          justify-content:space-between; 
          padding: 15/75rem 80/75rem;
          font-size:18/75rem;
          font-weight:400;
          color:rgba(153,153,153,1);
        }
      }
    }
  }

}
